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From:   Nick Desaulniers <ndesaulniers@google.com>
Date:   Mon, 7 Aug 2023 08:56:31 -0700
Message-ID: <CAKwvOdkJy12sZiqPyoZWb2-m4r5zywjo-cHkHGBu9XksU-RRxg@mail.gmail.com>
Subject: Re: [PATCH v2] LoongArch: Replace -ffreestanding with finer-grained -fno-builtin's
To:     Xi Ruoyao <xry111@xry111.site>, WANG Xuerui <kernel@xen0n.name>
Cc:     Huacai Chen <chenhuacai@kernel.org>,
        Nathan Chancellor <nathan@kernel.org>,
        loongarch@lists.linux.dev, llvm@lists.linux.dev,
        linux-kernel@vger.kernel.org, WANG Xuerui <git@xen0n.name>
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On Mon, Aug 7, 2023 at 12:17=E2=80=AFAM Xi Ruoyao <xry111@xry111.site> wrot=
e:
>
> On Sun, 2023-08-06 at 18:31 +0800, WANG Xuerui wrote:
> > > > +cflags-y +=3D -fno-builtin-memcpy -fno-builtin-memmove -fno-builti=
n-memset
>
> Can we only apply them for GCC <=3D 13?  I think with GCC 14 the built-in
> implementations are quite reasonable (well, maybe it's some human ego
> because I wrote them :).

Yes, and because only GCC-13 and older users should pay that penalty.

--=20
Thanks,
~Nick Desaulniers